Machine for removing bark from logs.



MACHINE FOR REMOVIG BARK FRM LOGS.

. APPLICATION FILED JULY 27. 1907.

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G. S. WITHAM, Jal. MACHINE POR REMOVING BARK FROM LOGS.

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APPLICATION FILED JULY 27. 11.407.

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-N ava 84s. PATENT D PEB. 11 -1 o G. s. WITHAM, Jn. E 908 MAGHINE Pon REMo'vING BARK PROM Loes.

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APPLIUATIOI FILED JULY 27, 1907.

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G. s. WITHAM, JB. MACHINE PoR REMOVING BARK PROM LOGS.

APPLICATION FILED JULY 27. 1907.

No.v 878,848.

Zwsesf UNITED sTATEs PATENT oEEIcE.

GEORGE S..WITHAM, JR.; OF SANDY HILL, NEW YORK, ASSIGNOR OF ONE-HALF TO GEO. S.

- WITHAM, SR., OF SANDY HILL, NEW YORK.

MACHINE Fon nnirovme zum; FROM Loes.

No.v878,848.

Specification of 'Letters Patent.

Patented Feb. 1'1, 190s.

Application nea my 27. 1907.v semi N9. 385.856.

To all whom 'it` may concern.'

Be it known that I, GEORGE S. WITHAM, Jr., a citizen lof the United States of America,

. residing in Sandy Hill, in the county of Washington and State of New York, have invented certain new and useful Improvements in Machines for Removing Bark from Logs, of 4 which the following isa specification.

My invention relates to that class of rossing machines in which the log is held in the path of a vertically arranged rota disk armed with knives which remove the ark from the log, land in whichthe lo is turned or, rotated to present its entire bar `covered surface to the action of the knives.

' The object of m invention is to improveV the construction o such machines, increase their output, render them, as far as possible, automatlc, relieve theJ attendant` of most of the labor heretofore necessary in the operation of the mechanism, and to prevent waste by an-improper adjustment of the knives or a careless manipulation of the logs.

In carryingout my invention, I provide an endless carrier on which the logs are-placed by an attendant and which conveys the logs to a osition to be acted on by the knives and t en transfer them to a conveyer which I carries them away from the machine to any desired point. When the log reaches the proper position .to .e cut, the carrier is automatically stopped and the log is automatically removed from the' carrienby a vertically` i rmovable table which holds the log durin the cutting operation, and which, when the ark is removed, lowers and transfers the log to the carrier which is automatically started and which'transfers it to the conveyer that carries the log away from the machine. table vis provided with' an automatic stop which automatically rises when the` table commences to move upward and prevents the .log from moving endwise to too great an extent when it is first delivered to the table This stop is automatically Withdrawn when the ytable lowers whereby the log maybe moved from the table by the endless earner.`

I also provide an adjustable sto which pre vents the log from moving endwlse while the bark is being cut therefrom. l

The log is turned while being cut by means of spur-wheels mounted in a swinging frame which is norm-ally held elevated, butwhich is.

v automatically lowered to cause the spurv Wheels to engage the logwhen the log is ele 'vated by the table and removed from the endless carrier. Means is provided whereby the position and movement of the spur-wheel may be`controlled at will by the attendant and other means'is provided whereby the at.- tendant may, at will, control the up and down movement of, the table. I have also provided means whereby the rotation of the s ur-wheels may be controlled to accommoate irregularities in the form of the log. The table is provided with means for rotating the log which are positively driven and cooperate with the spur-wheels above the log. Ordinarily in setting the knives the servicesof two attendants are required, one on the front side` of the disk to observe the` amount of protrusion of the knife `ed while the other behind the disk effects t e adjustment.. I have provided gages or sto s which are so arranged as to be out oft f Bath of the log during the rotationof the disk ut which automatically gage the amount of protrusion of the knives so that by merely adjusting the knives on their seats they may be set to protrude to the proper 'extent and without measurement.

In this class of machines it is-sometimes ,desirable to have the disk revolve in one direction and sometimes in the` other direction. I have so formed the` casing or housing of the disk as to provide discharge o enings on opposite sides and I have provid? disks with two seats for each'knif inclined in opposite directionsso that the knives may be set properly on the disk for rotation. in either direction. I have also rovided means whereby the disk may `be ocked while the knife is being set and alsomeans whereby the disk vmay be sus ended in its frame when the bearings of the is'k shaft are being cha Other features of myinvention wil be 'hereinafter explained.` f

accompanying drawingsfligure 1 ed the` shows afront elevation kof a rossm machine i* embodyingmy im rovements. ig. 2 is a detail view of the o carrier' and one of its supportingwheels. 3 shows an end elevation of the machine with some parts in section. Fig'. 4 is a detail view in perspective of part of the mechanismabove the log for rotating it. Fig. 5 ,is a 'perspective view on an enlarged scale showing particularly the log elevating table and certain parts associated therewith. Fig. 6 is a detail view in section and on an enlarged scale `showing and how it may be hun the construction ofthe seats for the knives and the gages or stops for Ilimiting the p rotrusion-'o the knives. Fig. 7 is' a detail view in perspective of one of the sto s. Fig. 8 is a sectional diagrammatic view i ustrating particularly the relation between the log,y its fable and the upper rotating meansy for the og. lowermost position. Fi 9 is a view similar to Fig. 8 with the tab e .elevated and the upper log rotating means lowered into engagement with thelog. Fig. 10 is a perspective view yof one of the teeth or spurs employed in the spur-wheels of the upper log rotating means. Fig. 11 is a detail view of` one of the spur-wheels, and Fig. 12 shows a further detall thereof. Fig. 13 is a diagrammatic view mainly in front' elevation but partly'in section of the entire machine showing how the logs are carried from a pond past the rossing machine and delivered to a conveyer which carries them away from thev Fig. 14 shows a verticalr transmachine. verse section through the machine with certain parts in elevation, and illustrates particularly how the rotary disk is supported from its casing when changed.

the bearings of its sha t are bein evices for Fig. 15 is a detail view-,of the locking the disk when the knives are being changed.

'In ig. 18 I have shown logs, X, in a pond,

A, `from which they are taken by an endless carrier, B, and delivered to the machine for the removal of their bark. After the bark is removed the logs are transferred by the chain to a conveyer, C, of suitable construction and delivered at any desired point.

The casing or housing, D, for the rotary disk, E, is in vmost res ects similar to that heretofore employed. t has an opening at D to permit the logs to come in contact with the knives and it is provided with two discharge openings, D2, for the exit of bark, chips', dirt," &c. Only one of these openings is used at a time. When the other is not in use it may be'closed by` a plug or stopper, D3, but by thus constructing the casing it may be us'ed right or left, that is, the lmife carrying disk may be revolved in either direction. The casing is referably made in sections hinged at d and ocked by bolts at d. By removing the bolts, d', the ipper section may be thrown back and the removed or the parts within the casing Silsie ln Fig. 8 the table 1s shownI in itsv 'thel shaft, F, is supported lon a bracket, F6. A plley, H, fast onthe rear end of the'shaft, F,` may be belted to a-lineshaft, or any other suitablesource of power. idle pulley, H', fast on ,a shaft, h, is arranged close to the pulley, H, and the shaft, h, is

The driving belt may be shifted from one pulley to the other to start or stop the rotation of the diskbya belt shifter, H2, operated by a handle, H3. L

after they are worn, the disk andfits, shaft extending through 'a threaded socket in the top part ofthe casing and adapted -to engage a threaded socket, i, in thedisk. Without this device, when the bearings are being chan *ed the machine 'would have toI be dis- 'mant ed and the shaft would have to be convenient.

The cutting blades 4or knives, J, are of openings, in the disk. The disk is provided observed by reference to Fig. 6 that du licate seats are made for each/knife and t at they are inclined oppositely so that the knives may be set to operate properly when the disk is revolved in either direction.

It is important that the knives should protrude from the front side of the disk to such an extent .as to .remove all the bark without removing any or much of the log. Much difficulty has heretofore been encountered from an improper adjustment of the knives. Sometimes 'they have been made to protrude to too small an extent so that the bark is not vcompletely removed, or av much longer time than necessary is taken to operate upon the log, and sometimes the workmen, in order to increase the output of the machine within a givenl time, have made the knives protrude to too great anextent and thus the log is cut into injuriously so as to remove not only the bark but also the god wood which should. be saved. By my improvements an im roper adjustment of the knives isimpossib e. I arrange at each end of the' slotted opening, j, in the disk a stop or gage, K. vhese stops areso arranged that they' will not come in contact with the log or any part of the machine as the full length of the knife or a sufficient length thereofrto operate upon the log ro erly. These stops are referably o' t e form shown in Fig. 7, eac one being merely a strap having wings, c, receiving screws, 7c', `that attach it to the disk and a central 'portion, k2, recessed at 7c3, toreceive the knife.

mounted to rotate in double bearings, h

Should it be desired to change thebear'ings-v usual construction and they extend-through 1 v90 with seats, E', for the knives and it will be` the disk rotates, but will nevertheless present' Anf may be supported by means of ascrew, 1,-.

jacked up outsidethe casing which is less` 1n setting a knife on its seat the attendant may o crate-through an opening or 'manhole, l, (Fig. 13). He merely has to loosen the screw, K3, and shove the knifeforward until its forward movement is arrested by the sto K, and hecan then tightenthe screw,l position. t Y. .V

In oi'der to hold the disk steady while the adjustment of the knives is being effected.,

3, to hold the knife in its adjusted I provide a locking device, L, shown mostopenings, i.

' clearly in Fig. 14. Itwill be observed that the disk, E, is rovided with a series ofradial commodate' the screw, I, heretoiore'referred.

- to, but they are ada ted to also receive the end a' hand wheel-y .13.

, 4 pressed surfaces of the cam, L5, the s 'y end, l, of a locking bo t, L', which is arranged l to move radiallyA through the casing, This bolt extendsthrough a frame, L2, a,t'

tached to", the casin and carries on its outer It also carries arms, L, wh1ch`\are adapted to ride on a cam sur- Afaee,'L5, of the frame, L2. lThis cam surface is formed una cross-piece,- L, on the outer end of thel frame, and between this crosspiece and collar,v L", on the bolt, L', is ar-J ranged a'spiral splring, s, which normally ten s to move t e olt radially inwards. In Fig.. 15 the bolt is shown as being'` With drawn from the disk and it is held in this' withdrawn position by means of thearms,4 L, being su ported on the raised portions of the cam sur ace, L5, but when the hand wheel is turned to allow the arms to enter the de- Prina '8,' will operate to move lthe bolt, L', radially inwards and the bolt may be made to lengage with a socket, i, and lock the disk' so that it cannot move While the knives are being adjusted. A corres ending socket, i,

' is rovided for each ofthe hives. 1"

l. carrying a wheel, B9, which is adapted tobe engaged by a paper covered friction Wheel he carrier is preferably composed of two parallel endless chains rovidedy with teeth or spurs, b, adapted to ite into the log and insure its being elevated and carried forward.

--The carrier passes over duplicate sprocket` wheels, B', mounted in the pond, A, and its upper side passes `over sprocket wheels, B2,

at the top of the pond, thence over wheels B4, on the opposite side of the machine, thence back to idle wheels, B5, carried by a bracket, B6, and thence overs rocket wheels, B', and then to the wheels, before mentioned. The wheels, B4; are carried by a shaft, B8, mounted in suitable bearings and B10, mounted on the power shaft, B11', which carries the driving pulley, B12. This shaft is mounted in bearings in a sliding block, B13,

' the arrangement being such that the wheel,

B10, may be moved into and out of engagement with the wheel, B", so that the chain may be made to move or to stop inthe man- I ner hereinafter described.

The carrier, B, as before stated, delivers the logs, after the bark is removed, to a conveyer, C, which may be of any desired con hese'are all threaded `to ac#` struction. 'lh'atshownl is well known and 4 need not befurther described.

Ihave'provided means whereby when th log'reaches a proper position relatively to v 4the cutter disk, it may beremoved. from the ront portion, m, a bottom portion, m', and j upwardly projecting side pieces, m2, on each side at the sides of which are openinds, m4, to accommodate the carrier chains. 'Ilo the bottom of the .table is attached a yokeshaped frame, M', which is connected with a bar or iston, Mpassin through a guide' frame, der, M2

The piston rod is rovided with a piston within the cylinder, lili be reciprocated b the engine in suc manner as to raise an lower the table. The details of the engine need not, ofcourse, be specifically shown or described. It may .be of any suitable construction. The valve chambe'n M, of the engine is connected with `asupply pipe, M1, for the entrance of steam,

air or other suitable motive iiuid, and the valve rod, M8, for controlling the admission and exhaust is connected with a lever, M,

jointed tothe piston rod, M1, which operates rovided with suitable valve mechanism at 12, controlling the admission of air, steam or other suitable fluidthrough `the supplyl pi e, M13. The valve mechanism is operated y a rod, M14.

, and it is ada ted to- The ,onV the top o an engine. cylinarrangement is such that by operating the rod, M14, the lever, M9, may be operated to control the admission and exhaust for the table.

cylinder, M5, and thus raise and lower the This l control may be effected vby means of a lever,M15, jointed to the rod, M14,

at 'm5, and pivoted to the casing, D, at m11. I have. rovided means, however, by which the table may be raised automatically as soon as a log reaches its proper position thereon. As shown in Fig. 5, spur-wheels,

O, are attached to a shaft, o, having. its bearings in` brackets, O', attached to the front of the casing, D. The outer end of this shaft at o', is unsupported ,and the shaft carries a cog-wheel, O2, gearingwith an intermediate wheel, O3, meshing with a larger cog-wheel, Of1, carrying, a stud or pin -o2,adapted to enlgage a lever, O5, pivoted to the main frame at O6, and connected with the rod, M14. When the table is in its lowermost position, as shown in Fig. 5, the spur-wheels, O, project above its top andare adapted to engage @the underside ofthe" log while the latter is on the carrier, B. As the carrier moves thc log across the table the spur-wheels are rotated Vand by properly gearing these spur-wheels long. Preferably the arrangement is such that when 18 inchesof log has moved across ythe spur-wheels, the lever, O3, is tri iped and 'y the table is caused to rise so that t e tableraising mechanism will be operated whether the log be 18, 24 or 3() inches in length.

The table is provided with supporting` rollers, P,land also with a fluted feed-roller, P', which is geared at P7, with a vertical shaftP3, which is adapted to move vertically as the table moves up anddown in the `manner hereinafter described.

It will be understood that one attendant may place the logs on the carrier., that the vlogs are moved automatically by the carrier .to the table when the table is in its lowermost position, that when the log has reached the desired position on the table, the latter is automatically raised and means is provided, as will next be described, whereby the movement of the carrier is arrested so that the next loglwill not be fed to the table or towards the table until the table is again lowered and is ready to receive another log. For-the purpose of thus arresting the movement of the log carrier the tableis ivotally ,connected atg with a bell-crank ever, Q,

.pivoted at g', to a standard, Q2, and -connected at g3, with the sliding block, B13, before referred to. When the table'is in its lowermost position the friction wheel, B10, engages thel wheel, B3, and the log-carrier is moved, but when the table rises the friction wheel, B10, is withdrawn from the wheel, B3, and themovement of 'the carrier chain is arrested. 'It will thus be seen that the table is made to rise automatically at the proper time and the movement of the log carrier is at the same time automatically stop ed, and it will also be seen that when the tab e is lowered the movement of the log carrier is automatically resumed. The -table is not .arranged to lower automatically after the log is barked. The -lowering of the table is effected by' the attendant whooperates the lever, M13. i

The momentum given to the logs by the carrier chains tends sometimes to carry them too far across the table. yIn order to prevent this, I provide an automatic stop which is shown as consisting of an arm, R,

projecting upwardly from a lever, R', ar-

ranged horizontally below the table having one end pivoted to the frame',- D, at R3, andv having a pin and slot connection, R3,

an arm, R4, projecting downwardly from the table. The arm, R, has a pin and slot connection, R5, with one side of the table and the v leverage is so calculated that when the table is in its lower position the stop, R, is withdrawn or lowered, but when the table commencesto rise the stop is yquickly moved up above the plane of the top of the table into the path of the log. The leverage is also such that as soon as the table commences to descend the stop is quickly withdrawn so.y

that by the time the top of the table reaches the plane of the carrier chains, the stop isout of the way and the log can be removed from the table by the carrier. This automatic disappearing stop is of great advantage in the operation of the machine. 4

In order to move the logs from the front portion of the table onto the roller P' to press them against the cutter disk and to rotatev them while being out, AI provide spur-wheels, S, carried by a swinging frame, S', and rotated by a driving chain, S3, connected with a shaft, S3. The frame, S', comprises arms, s, hung loosely from the shaft, S3, and carrying at their outer lower ends an axle, S4, to

which the wheels, S, 'are secured. The axle,

S4, also carries a sprocket wheel, S5, (Fig. 1)

over which the' chain, S7, extends and this chain extends over a sprocket wheel, S, secured to the shaft, S3. Each of the arms, s, is pivotally connected with a link, S7, the outer endof which is slottedA and bifurcated and receives an arm, t, of a bifurcated lever,

T. Each arm, t carries a bolt t' which ex-' tends through the slot 'of the link, S7. A spring, t7, is interposed between each arm, t, and each arm, s, rings or washers, t3, being arranged atthe ends of the springs. Normally the lever, T, is held in a position to raise the frame, S', to the-position shown by' dotted lines in Fig. 3 with the spur-wheels, S, away from the log. At this time the bolts,

t', will be at the upper ends of the slots in the outer ends of the links, S7, but when the front end of the "lever, T, is depressed, the frame S', carrying the spur-wheels, S, will be lowered to the position shown by full lines in Fig. 3. In thus lowering, thefwheels first engage the log when the table is elevated to the position shown in Fig. 9, and when 4the log is at the front of the table.' frame S' swings downwardand inward and against the cutting disk and onto the roller P', as shown in Fig. .9. The springs, t3, are put under compression so as' to hold the frame down with a yielding ressure whereby it'may accommodate itse to irregularities in the sha e of the log. I f' the spurwheels were hed rigidly in their lowermost position, therotary movement ofthe log would sometimes be stopped when a knot or other irregularity pres nted itself, but by providing the yielding devi es described the Then as the.

the wheels rotate the log is moved over rotary movement may continue uniformly' Without interruption. Furthermore the arran ement is such that thewheelsS engage the o gradually or with a yielding pressure .and t us they are prevented from cutting too deeply at any time. If the s rings t2 were omitted the spur-Wheels S wou d strike the logs so forcibly when the frame S islowered that much of the good wood would be lof thelog would commence.

taken off below the bark before the rotation ing a pulley, T4, W 'ch is belted to a pulle T5, on the shaft, F, of the knife .carrying dis The shaft', S3, carries a collar, T, between which and a loose collar, T7, on the shaft is interposed a spiral sprin T8. 4 The collar,l T7, bears against one of t e bearings, T3, of the shaft and the spring tends to hold the Wheel, T', and j inion, T2, in engagement with each other, an when thus engaged the shaft, S3, is made to rotate and in turn rotates the spur-Wheels, S. ABy' reason of the frictional gearing between, T', and T3, should any great obstruction be presented to the rotation of the wheels, S, the gearing willslip. The ge ar ingmav be separated so as to arrest the rotation of the wheels, S, by means of a bellcrank lever, T3", pivoted at t1, to the casing,

, D, and connected by 'a rod, T, with a pedal or foot lever, T1?. Bymeans ofthis edal lthe rotation of the feed Wheels, S, may e arrested to permit aknot or seam to be removed a from the log without elevating the frame, S.

On one end the shaft, S3, carries, a beveled pinion S13, enga ing a beveled pinion, $11on the shaft, P3. hen the shaft, S3, rotates, movement is im .arted not only to the spurwheel's, S, but a so to the fiuted feed roller, P The shaft, P3, has a slot and pin connection at l 3, with the frame and with the inion, s, so that this shaft may rise and fa lv with the table without separatingthe gears, s1", s, or, the gearing at P3. T e teeth of thea pmions, 812s, are made long or deep so that the longitudinal adjustment ofthe shaft, S3, does not throw'them out of gear, it being understood that a very slight movement `of the shaft is sufficient to separate the friction gearing at T T. It will be understood` that the shaft, S3, rotates continuously or as long as thel gears, `T, T3, engage each other,.but the ,spur-wheels, S, are at tunes held up away from the lo orthe horizontal plane of the log. In or er to raise and lower thespurl wheels, S, automatically, provide the mech- 'anism next to be descri The rear end of the lever, T, is jointed to a vertical connecting rod, U, connected with a. piston, U', operating in a cylinder, lU, to which steam, air or other suitable fluid is. admitted' through a valve chest, U3. The. valve is connected by a rod, U4, with a lever, U3, to the front end of which lis connected a.

rod, U3, extending up through lu s, U7, ro-

jecting laterally from one side o the ta le, M. On the upper end of the rod, U", is' a collar, u, between which and another collar, u, resting on the top lug, U7, is a spring, U8. Another spring, U", is arranged between a collar, 11.3, fast on the rod, Uand another collar, a3, restin against the under side of lower lu U7. hand lever, U1, ispivoted to the ta le at u1", and it is jointed to the rod,

fU, between the lugs, U7. When vthe table is f i l 1n its lowermost position the rearend of the lever, T, islowered and the feed wheels, S, are in their elevated position, but when the table rises the rod, U3, causes the rod, U-, to be drawn downward and the valve meehan ism causes the rod, U, to rise and the frame,4 S', carrying the spur-wheels, S, to be lowered.

It will thus be seen that the u ward, Inova ment of the table automatical y moves they spur-wheels, S, against the log and that the.v downward movement of the table withdraws, the spur-wheels from the log. By means of. the hand lever, U1", the attendant may Inova the spur-wheels to or from the log when the 4table is in either position, `thus putting the mechanism under perfect control without. in

any wayinterfering with the operation of the, j *v automatic mechanlsm. The springs, Us, U", might be dis ensed with, but the serve tof afford a yiel ing connection to re uce Strain on the mechanism.

` The spur-wheels, S, may be of an suitable construction, preferablythey are ormed in the manner indicated in Fi s. 10, 11, and l2,y each wheel consisting of a i'sk, W, having a channeled periphery, lw, in which the teeth, w", are held, referably by set screws, w3.. The inner en s or shanks ofthe teeth are preferably made to match as indicated in` secured ig. '11. Each tooth is se aratel, by a set screw and any of t e teet may` be removed and sharpened or replaced by a new one when necessa ln machines of chips and dust is thrown across the front side of the machine instead of being drawn into gie casing and discharged through the port.

2 chips, and prevent its being scattered ontheoutside of themachine, I rovide a hoed,YV

arranged at one side lof t e tableand connected by a pipe or condu1t,-Y, with the Ilthis classsome of the bark, .l

In order to collect such. bark, ydust and i casing, D, at its'middle portionas shown in Fig.r14.` The cutter disk is provided with reference to fan wings, E2, as usual, which tend to draw l turning means after the log Vhas been re- 65 chips, dirt, etc., in through the opening, D', and in my machine it also draws the chips, dirt, etc., in through the hood, Y, and conduit, Y', to the interior of the machine and delivers them thr'ough the discharge opening, D2.

The rotary cutter disk when operating onl a log tends to move it in the direction in which the disk is rotating. In most machines of this class a stop or buffer vis provided to prevent this endwi'se movement of the log while being turned and barked. 'In my machine I employ a stop, Z, consisting of a head, z, on an arm, z, connected with a horizontally arranged rack, z2, adaptedto slide in guides, z3, and engaged by a pinion,

2*, rigidly connected with a lever, z5, having a handle, z". By means of these devices the stop, Z, may be adjusted longitudinally with the table so as to hold the log, whatever be its length, in proper relation to the cutters and the feed mechanism for rotating the log. The lever, z", may be provided' with suitable detent mechanism, as shown,

'- for holding the stop rigidly when once set.

In'my machine most of the operations are automatic while still being under perfect control. One attendant is required to place the logs on the log carrier while one other attendant can control the rossing operation without expending any energy in either lifting the logs, holding them against the cutters, or turning them. When a log arrives at the table, the latter is automatically raised and operates mechanism which throws the log against the cutters and holds it there while the bark is being removed and the attendant has merely to Wait until the log is barked. By then merely turning a lever the log with l the bark removed'may be lowered-'onto a `the "table for automatically removing a log from lcar-rier which conveys it away and brings forward another log .which is automatically raised from the carrier and'dbarked, and so on.

- I claim as my invention 1-. A machine for removing bark Jf'rom logs comprising a cutter, a carrier for conveying ark covered logs toward lthe cutter, a

the carrier and for supporting it whilebeing c'ut, and means for automatically bringing into 'operation mechanism for pressingl the log against the cutter and for turning it while being so sup orted' and pressed.

, 2. A mac ine for removing bark from logs,

comprising a cutter, acarrier for conveying.

barkcovered logs toward the cutter, atable for removing a 10g from the carrier, power operated mechanism for raising and lowerduring bringing into 1operation said log pressing and ingl the table, power operated mechanism` which yieldin ly presses the lo against the cutter While eing vcut and w 'ch turns it the cutting operation, and means for turnin Ile log and devices for throwing such 110 @fraaiev moved from the carrier.

3. A machine for removing barkfrom logs, comprising a cutter, a carrier for conveying 'bark covered logs toward the cutter, a' table for removin a log from the carrier, means for moving t e log into engagement with tho cutter, for pressing it against the Acutter and for turning it while being cut, power driven means for bringing into eperation said log moving pressing and turmng means, means 745 for causing the barked log to be delivered to the ycarrier and for causing the latter to resumel its movement and carry the barked log away, and means under the control of the attendant for' regulating the pressure of the 80 log turning means on the log during the progress of the cutting operation.

4:.` A machine for removmg bark from logsi .comprisin a vertically arranged rotary disk armed wit radial knives, a carrier for mov- 'ing logs toward the cutter, a table for lifting a log from the carrier, means for pressing the log against the cutter during the cutting operation and for turning it while being cut,

astop for preventing endwise movement of l the log during the cutting operation, power driven mechanism forlelevating and lowering the table', oWer driven mechanism for elevatingand owering the log-pressing and turning means and devices under the control of the attendant for regulating the action of the power driven mechanisms.

5. A machine for removlng bark from logs comprising a cutter, a carrier for conveying logs vtoward thecutter, a table which supports a 10g while being cut, power operated mechanism for lifting the table to elevate the log above the carrier, means for throwing such mechanism into and .out of operation, means for holding the' log on the table 105 for pressing it against t e cutter and for turning it while beingcut,` pQwe-r operated mechanism for moving such holding, pressing and means into and out of engagement with t last-mentioned operating mechanism .into and out of operation. v

6. In a machine for removing bark from logs, the combination of a rotary cutter, a

carrier for conveying bark'covered logs to- 115 ward the cutter, a vertically movable table for liftin a log from the carrier, iiuid pressure me'c anism for raising the tabla-devices operated by thelog While on the carrier for causingl raise't e table, means-for pressing the-log against the cutter, duri the cutting operation and for turning it w ile being cut, luid pressure mechanism for bringing said log` pressing. and turning means into en agement 125 with the logand devices operate by the ltable for causing -said -luid pressure means to operate.

such uid pressure mechanism to y v logs,`the combination of a rotary cutter, a

7. In a machine for removing bark from carrier for` conveying bark covered logs toward the cutter, a vertically movable table for liftin a log from the carrier, Huid pressure mec anism for raising the table, devices operated by the log while on the carrier for causin such iuid pressure mechanism to raise t e table, means for pressing the log against the cutter and for turning it while on the table and durin the cuttin operation, Huid pressure niedIiai'iism for ringing said log-pressing and turning means into engagement with the log, devices operated by the table for causing said Huid pressure mechanism to operate and other devices under the control of the attendant for regulating the action of said lastmentioned vfluid pressure mechanism.

8.1 A machinefor removing bark from logs comprising a cutter, a carrier for conveying bark covered lo' s toward the cutter, means for automatical y removing a log from the carrier, means for automatically arresting `the movement of the carrier as a log asses to the table, means for automatically ringing into operation mechanism for pressing the log while on the table against the cutter -and for. turningit durin the cutting operation and devices for de ivering the barked log to the carrier and for causing the latter to resume its movementand carry the barked log away.

9. In arossing machine the combination with a cutter, of a horizontally movable logcarrier, a vertically movable tablefor removing a lo from the carrier and for holding it while eing cut, means set into operae tion by the log while on the carrier for causing the table to rise and lift the log from the carrier and means for turning the log while on 'the table during the cutting operation.'

10. In a rossing machine the combination with a rotary cutter, of a horizontally mov. able log-carrier, avertically movable table across which the carrier passes, means set into operation by la log while on the carrier for causingthe table to rise and lift the log from the carrier and means 4for'then bringing into operation mechanism-for pressing the- `log against the cutter and forturning it while still supported by the table during the cutting operation. I

11. In a rossing machine the combination with a cutter, of a log-carrier, a table for removing a'log from the carrier and for holding it while being cut, means operated by the log as it approaches the cutter for automaticallyr effecting the movement'of the table to withdraw the log from the carrier, and means for pressing the log while on the table against the cutter and for turning it during the cut- Y ting o eration.

12. n a rossingmachine the combination with a cutter of a log-carrier, a table for removing a log from the carrier, means set into operation by the movement of `the table for arresting the movement of the carrier and means for turning the log whileon the table during the cutting operation.

13. In a rossing machine the combination with a cutter of a log-carrier, a table for removing a log from the carrier, a stop carried by the table for limiting the movement' of the log as it asses on to the table, means operated by tlie log as it passes on to the table for automatically etl'ectmg the movement of the table to withdraw the log from the carrier, means operated by the upward movement of the table for withdrawing the stop carried thereby, a stop against which the end of the I log abuts during the cutting operation, means for pressingr the log against the cutter and for turning it during the cutting operation and means under the control of the attendant for lowering the table to deliver the barked with a cutter of a horizontallymovable logcarrier,` a vertically movable table Jfor removing a log from the carrier, means for 14; In a rossing machine the combination matically arresting the movement of the cart rier, and means for pressing the log `against the cutter and for turning it during, the cut-k ting operation.

y 16. In a rossing machine the combination with a cutter of a horizontally movable endless carrier, a verticallymovable table for re-A moving a log from the carrier and holding it while being cut, means for turning the log while on the table during the outtmg operation and"mechanism for starting and stopping the carrier and for raising and lowering the table.`

17. In a rossing machine, the combination with a cutter, of a horizontally movable c arrier, a vertically movable table for removing a log from the carrier, means operatedby the log while on the carrier for causing the table to remove the log from the carrier, means for yieldingly pressing thelog against the'cutter during the cutting operation andfor turning ity while being cut, and mechanism set into operation after the table has removed the log Afrom the carrier for bringing into operation said Vlog pressing and turning means,"I

18. In a rossing machine, the combination with a cutter, of a horizontally'movable ycarby the table for operating said log pressing and turning means.

19. In a rossing machine ,the combination 'with a cutter of a horizontally movable carrier, a vertically movable table for removing a log from the carrier and holding itwhile .being cut, mechanism for raising land lowering the table, whe`els engaged bythe log while on the carrier and connections between these wheels and the raising and lowering mechanism whereby the rotation of the wheels causes I the table to be raised. I

' 20. The combination of a cutter, a log-carrier, a table which receives logs fromthe carrier, means operated by a log while on the carrie'r for automatically raising the table, de-

` vices under the control of the attendant for actu-ating said operatin mechanism whereby.v

the table ma be raiser and lowered at will, and means a so under thev control of the attendant for pressin the log against the cutter while on the tab e and for turning it during the cutting operation.

21. In a rossing machine the combination with a rotary cutter ol a log-carrier, means for removing a log from the carrier, means for automatically stopping the movement of the carrier as soon as the log isl removed therefrom, and means automatically set into operation when the log is removed from the 'carrier' to press the log while on the table against the cutter and toturn the log during the cuttingl operation.

2 2. -In 'a rossingmacliine the combination with a rotary cutter of a horizontally mov able lo -carrier, means for removing a log from t e carrier, means for stoppin(Jr `the movement of the carrier as soon as thetlog is removed therefrom, and means automatically set into o eration when the log is removed from t e carrier but while on the table to press the log against the cutter and to turn it during the'cutting operation..

23. In a rossing machine the combination of a rotarycutter, a table for supporting a log while bein cut, means for raising and lowering the ta ile, means `for turning the log while on the table-during the cutting operation, connections between the log-turning means and the table for' causing said turning means to rise and fall as the table moves'vertically, and means for controlling the up and down movement of the log-turning means independently of the movement of the table. 24. In a rossing machine the combination of a'rotary cutter, means for holding a loganism contains slip or friction gearing where-` by the log-turning mechanism is thrown into and out of operation when an obstruction in the log is encountered, and a sprm interosed in the lifting and lowering mec anism' orvcausing the turning mechanism to exert a yielding pressure on the lo 25. In a rossing machine t e combination of arotary cutter, means forA holding a log while being cut, mechanism for turning the log while under oing carried, power driven mechanism for raising and lowering said frame, and for operating the turning devices and which contain shp or friction gearing and a spring inteiposed in the lifting and lowering mechanism or causing the turning devices to exert a. yielding pressure on the log. y

26. In a rossing machine, the combination of a' rotary cutter, means for su porting a log while being cut, afspur wheel or turning the log, a Swingin frame in which said spur wheel is mounte a'lever for raising and lowering the frame, power operated mechanism for operating the lever to raise and lower the frame, a link extending upwardly from the swiiiing frame, a sliding connection between t elink and the lever, a spring interposed between the lever and the frame,

power driven Vmechanism for rotating the s ur wheel and devices under the control of t e attendant for regulating the power driven means to raise and lower the wheel.k

27. In a rossing machinre the combination of a rotary cutter, a log-carrier, a table across which the'carrier extends and which receives a log from the carrier, a stop carried `by the table for preventing the log being moved to ytoo great an extent across. the table, means operated by the table for withdrawing the stop as the table rises and for bringing it into operative position when the table descends, and another fixed stop against which the log abuts during the cutting operation.4

'28. In a rossing machine the combination of a cutter, a log-carrier, a vertically movable table which receives .logs from the carrier, a lever having a fixed pivot, and rovided with an arm proj ectin above the top of the table, and a pivotal sli ing connection between the lever and the table whereby the arm of the lever is lowered and raised as the table rises and' falls.

the cutting operation," a frame in whic said turning mechanism isv 29. In a rossing machine the combination the former is operated while the table is free of a rotary cutter, a table forholding a log to ,raise and lower. 0 while being cut, a roller carried by the table, l .In testimony whereof, I have hereunto log-turning means above the table, means subscribed m name 5 for raising and lowering saidlog-turning EORGE S. WITHAM. JR.

means, means for raising and lowering the Witnesses:

4 table and connections between said roller on H. A. MOODY, the table and the 1ogturningmeans whereby H. O. NUMAN. 

